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Sports Medicine—Open

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https://www.readbyqxmd.com/read/29916055/the-what-and-how-of-video-analysis-research-in-rugby-union-a-critical-review
#1
REVIEW
Steve den Hollander, Ben Jones, Michael Lambert, Sharief Hendricks
BACKGROUND: Video analysis is a common tool used in rugby union research to describe match performance. Studies using video analysis range from broad statistical studies of commercial databases to in-depth case-studies of specific match events. The range of types of studies using video analysis in rugby union, and how different studies apply the methodology, can make it difficult to compare the results of studies and translate the findings to a real-world setting. In attempt to consolidate the information on video analysis in rugby, a critical review of the literature was performed...
June 18, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29884972/the-effect-of-foam-rolling-for-three-consecutive-days-on-muscular-efficiency-and-range-of-motion
#2
Lewis J Macgregor, Malcolm M Fairweather, Ryan M Bennett, Angus M Hunter
BACKGROUND: Foam rolling (FR) has been shown to alleviate some symptoms of exercise-induced muscle damage and has been suggested to increase range of motion (ROM) without negatively impacting strength. However, it is unclear what neuromuscular effects, if any, mediate these changes. METHODS: In a randomized, crossover design, 16 healthy active males completed 2 min of rest or FR of the knee extensors on three consecutive days. Mechanical properties of vastus lateralis (VL) and rectus femoris (RF) were assessed via Tensiomyography...
June 8, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29882063/socioeconomic-correlates-and-determinants-of-cardiorespiratory-fitness-in-the-general-adult-population-a-systematic-review-and-meta-analysis
#3
REVIEW
Katherine J Ombrellaro, Nita Perumal, Johannes Zeiher, Jens Hoebel, Till Ittermann, Ralf Ewert, Marcus Dörr, Thomas Keil, Gert B M Mensink, Jonas D Finger
BACKGROUND: This review aims to (1) consolidate evidence regarding the association between socioeconomic status (SES) and cardiorespiratory fitness (CRF), (2) conduct a meta-analysis of the association between SES and CRF using methodologically comparable data, stratified by sex, and (3) test whether the association varies after adjustment for physical activity (PA). METHODS: A systematic review of studies from MEDLINE, EMBASE, Latin American and Caribbean Health Sciences (LILACS), Scientific Electronic Library Online (ScIELO), and Cochrane Library without time or language restrictions, which investigated associations between SES and CRF...
June 7, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29869300/a-review-of-the-evolution-of-vision-based-motion-analysis-and-the-integration-of-advanced-computer-vision-methods-towards-developing-a-markerless-system
#4
REVIEW
Steffi L Colyer, Murray Evans, Darren P Cosker, Aki I T Salo
BACKGROUND: The study of human movement within sports biomechanics and rehabilitation settings has made considerable progress over recent decades. However, developing a motion analysis system that collects accurate kinematic data in a timely, unobtrusive and externally valid manner remains an open challenge. MAIN BODY: This narrative review considers the evolution of methods for extracting kinematic information from images, observing how technology has progressed from laborious manual approaches to optoelectronic marker-based systems...
June 5, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29869021/the-clinical-validation-of-the-athlete-sleep-screening-questionnaire-an-instrument-to-identify-athletes-that-need-further-sleep-assessment
#5
Amy M Bender, Doug Lawson, Penny Werthner, Charles H Samuels
BACKGROUND: Previous research has established that general sleep screening questionnaires are not valid and reliable in an athlete population. The Athlete Sleep Screening Questionnaire (ASSQ) was developed to address this need. While the initial validation of the ASSQ has been established, the clinical validity of the ASSQ has yet to be determined. The main objective of the current study was to evaluate the clinical validity of the ASSQ. METHODS: Canadian National Team athletes (N = 199; mean age 24...
June 4, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29846834/is-cardiorespiratory-fitness-related-to-cardiometabolic-health-and-all-cause-mortality-risk-in-patients-with-coronary-heart-disease-a-care-cr-study
#6
Simon Nichols, Claire Taylor, Richard Page, Anna Kallvikbacka-Bennett, Fiona Nation, Toni Goodman, Andrew L Clark, Sean Carroll, Lee Ingle
BACKGROUND: Higher cardiorespiratory fitness (CRF) is associated with lower morbidity and mortality in patients with coronary heart disease (CHD). The mechanisms for this are not fully understood. A more favourable cardiometabolic risk factor profile may be responsible; however, few studies have comprehensively evaluated cardiometabolic risk factors in relation to CRF amongst patients with CHD. We aimed to explore differences in cardiometabolic risk and 5-year all-cause mortality risk in patients with CHD who have low, moderate, and high levels of CRF...
May 30, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29797285/parkour-as-a-donor-sport-for-athletic-development-in-youth-team-sports-insights-through-an-ecological-dynamics-lens
#7
Ben William Strafford, Pawel van der Steen, Keith Davids, Joseph Antony Stone
Analyses of talent development in sport have identified that skill can be enhanced through early and continued involvement in donor sports which share affordances (opportunities for action) with a performer's main target sport. Aligning key ideas of the Athletic Skills Model and ecological dynamics theory, we propose how the sport of parkour could provide a representative and adaptive platform for developing athletic skill (e.g. coordination, timing, balance, agility, spatial awareness and muscular strength)...
May 24, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29797099/the-use-of-sideline-video-review-to-facilitate-management-decisions-following-head-trauma-in-super-rugby
#8
Andrew J Gardner, Ryan Kohler, Warren McDonald, Gordon W Fuller, Ross Tucker, Michael Makdissi
BACKGROUND: Sideline video review has been increasingly used to evaluate risk of concussive injury during match play of a number of collision sports, with the view to reducing the incidence of match play concussion injuries. The purpose of this study was to evaluate the effectiveness of sideline video review for identifying and evaluating head impact events in Rugby Union. METHODS: All Australian teams' 2015 Super Rugby season matches were studied. Meaningful head impact events (HIEs) were identified, comprising events identified and acted upon during matches and events identified through a post-season retrospective review...
May 24, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29796715/sickle-cell-trait-and-sudden-death
#9
REVIEW
Bruce L Mitchell
Sickle cell trait has long been considered a benign condition but continues to be the leading cause of death in young African Americans in military basic training and civilian organized sports. There continues to be a great deal of controversy surrounding sickle cell trait and its association with exercise-related morbidity and sudden death. Even though sickle cell trait has a high prevalence among African Americans, many clinicians believe the potential adverse consequences should have been mitigated by actions such as universal screening in the USA at birth for sickle hemoglobin, National Collegiate Athletic Association (NCAA) rule changes, and changes in the US Military boot camp system...
May 23, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29790057/are-youth-sport-talent-identification-and-development-systems-necessary-and-healthy
#10
Fieke Rongen, Jim McKenna, Stephen Cobley, Kevin Till
Talent identification and development systems (TIDS) are commonly used in professional sport to convert youth athletes into sporting stars of the future. Acknowledging that only a few athletes can "make it," the necessity and healthiness of TIDS have recently been questioned based on their increased professionalism, high training, and competition volumes, but limited effectiveness. In this short communication, we suggest that the key issues associated with TIDS are not due to their overall concept, but with how they are designed and implemented...
May 22, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29721761/a-cross-sectional-study-assessing-the-contributions-of-body-fat-mass-and-fat-free-mass-to-body-mass-index-scores-in-male-youth-rugby-players
#11
Olivier Gavarry, Gregory Lentin, Patrick Pezery, Anne Delextrat, Guillaume Chaumet, Alain Boussuges, Julien Piscione
BACKGROUND: In some sports such as rugby, a large body size is an advantage, and the desire to gain weight can bring young players to become overweight or obese. The aim of this study was to evaluate the prevalence of overweight and obesity and the contribution of body fat mass index (BFMI) and fat-free mass index (FFMI) to body mass index (BMI) changes among young male rugby players (15-a-side rugby). METHODS: The criteria of the International Obesity Task Force were used to define overweight and obesity from BMI...
May 2, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29679164/the-effect-of-a-school-based-intervention-on-physical-activity-and-well-being-a-non-randomised-controlled-trial-with-children-of-low-socio-economic-status
#12
Stephen Shannon, Deirdre Brennan, Donncha Hanna, Zoe Younger, Jessica Hassan, Gavin Breslin
BACKGROUND: Self-determination theory (SDT) has been used to predict children's physical activity and well-being. However, few school-based SDT intervention studies have been conducted, and no research exists with children of low socio-economic status (SES). Therefore, SDT-derived needs-supportive teaching techniques informed the design and analyses of the Healthy Choices Programme (HCP). The aim was to determine if the HCP could enhance moderate-to-vigorous physical activity (MVPA) and well-being among children of low SES through increasing autonomy-support, needs satisfaction and intrinsic motivation...
April 20, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29610999/quantifying-the-effects-of-different-treadmill-training-speeds-and-durations-on-the-health-of-rat-knee-joints
#13
Jaqueline Lourdes Rios, Kevin Rudi Boldt, James William Mather, Ruth Anne Seerattan, David Arthur Hart, Walter Herzog
BACKGROUND: Walking and running provide cyclical loading to the knee which is thought essential for joint health within a physiological window. However, exercising outside the physiological window, e.g. excessive cyclical loading, may produce loading conditions that could be detrimental to joint health and lead to injury and, ultimately, osteoarthritis. The purpose of this study was to assess the effects of a stepwise increase in speed and duration of treadmill training on knee joint integrity and to identify the potential threshold for joint damage...
April 2, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29589215/cellular-glucose-uptake-during-breath-hold-diving-in-experienced-male-breath-hold-divers
#14
Nicola Sponsiello, Danilo Cialoni, Massimo Pieri, Alessandro Marroni
BACKGROUND: The physiological and pathophysiological mechanisms that govern diving, both self-contained underwater breathing apparatus (SCUBA) and breath-hold diving (BH-diving), are in large part well known, even if there are still many unknown aspects, in particular about cell metabolism during BH-diving. The scope of this study was to investigate changes in glycemia, insulinemia, and the catecholamine response to BH-diving, to better understand if the insulin-stimulated glucose uptake mechanism is involved in cellular metabolism in this sport...
March 27, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29582181/self-myofascial-vibro-shearing-a-randomized-controlled-trial-of-biomechanical-and-related-changes-in-male-breakdancers
#15
Christopher-Marc Gordon, Sophie Manuela Lindner, Niels Birbaumer, Pedro Montoya, Rachel L Ankney, Frank Andrasik
BACKGROUND: This randomized controlled trial explored the practicality and effectiveness of a novel tool-assisted self-help device, one that combines vibrational oscillation, leverage, and the shearing effect from the edges, for promoting meaningful changes in key biochemical tissue indices and related parameters. METHODS: One hundred and thirteen male breakdancers were randomized to an intervention or control group. Individuals assigned to the intervention group performed the self-help treatment on the quadriceps and the iliotibial band of their right thighs for 8 min, while individuals assigned to the control condition merely sat quietly during this period...
March 27, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29492711/a-benefit-of-being-heavier-is-being-strong-a-cross-sectional-study-in-young-adults
#16
Gill A Ten Hoor, Guy Plasqui, Annemie M W J Schols, Gerjo Kok
BACKGROUND: In this study, the main hypothesis is that heavier people enjoy strength exercises more than normal-weight people, mediated by fat-free mass and muscle strength. Further, it is hypothesized that heavier people are better in strength exercises and enjoy strength exercises more compared to aerobic exercises. METHODS: In a cross-sectional study, height, weight, body composition (i.e., fat mass and fat-free mass by underwater weighing), muscle strength (i...
March 1, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29484576/a-subjective-assessment-of-the-prevalence-and-factors-associated-with-poor-sleep-quality-amongst-elite-japanese-athletes
#17
Masako Hoshikawa, Sunao Uchida, Yuichi Hirano
BACKGROUND: The amount, quality, and timing of sleep are considered important for athletes' ability to train, maximize training responses, and recover. However, some research has shown that elite athletes do not obtain sufficient sleep. Based on this background, researchers recently started to assess and manage sleep in elite athletes. The purpose of this study was to clarify the prevalence of poor sleep quality and its associated factors amongst elite Japanese athletes. METHODS: Eight hundred and ninety-one candidates for the 17th Asian Games Incheon 2014, who were over 20 years old, participated in this study...
February 26, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29484512/crossfit-overview-systematic-review-and-meta-analysis
#18
REVIEW
João Gustavo Claudino, Tim J Gabbett, Frank Bourgeois, Helton de Sá Souza, Rafael Chagas Miranda, Bruno Mezêncio, Rafael Soncin, Carlos Alberto Cardoso Filho, Martim Bottaro, Arnaldo Jose Hernandez, Alberto Carlos Amadio, Julio Cerca Serrão
BACKGROUND: CrossFit is recognized as one of the fastest growing high-intensity functional training modes in the world. However, scientific data regarding the practice of CrossFit is sparse. Therefore, the objective of this study is to analyze the findings of scientific literature related to CrossFit via systematic review and meta-analysis. METHODS: Systematic searches of the PubMed, Web of Science, Scopus, Bireme/MedLine, and SciELO online databases were conducted for articles reporting the effects of CrossFit training...
February 26, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29423763/associations-between-practice-related-changes-in-motor-performance-and-muscle-activity-in-healthy-individuals-a-systematic-review
#19
REVIEW
Dennis Brueckner, Rainer Kiss, Thomas Muehlbauer
BACKGROUND: A well-learned motor skill is characterized by the efficient activation of muscles that are involved in movement execution. However, it is unclear if practice-related changes in motor performance correlate with those in quantitative markers of muscle activity and if so, whether the association is different with respect to the investigated muscle (i.e., agonist and antagonist) and quantitative myoelectric parameter. Thus, we conducted a systematic review and characterized associations between practice-related changes in motor performance and muscle activity in healthy individuals...
February 8, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29388074/correction-to-aerobic-but-not-resistance-exercise-can-induce-inflammatory-pathways-via-toll-like-2-and-4-a-systematic-review
#20
P A M Cavalcante, M F Gregnani, J S Henrique, F H Ornellas, R C Araújo
The original article [1] mistakenly omits a grant acknowledgement; thus, the authors would like to acknowledge that the original article was supported by FAPESP 2015/20082-7.
January 31, 2018: Sports Medicine—Open
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